1 ; RUN: opt < %s -instcombine -S | FileCheck %s 2 3 ; PR1510 4 5 ; These are all equivalent to A^B 6 7 define i32 @test1(i32 %a, i32 %b) { 8 %tmp3 = or i32 %b, %a ; <i32> [#uses=1] 9 %tmp3not = xor i32 %tmp3, -1 ; <i32> [#uses=1] 10 %tmp6 = and i32 %b, %a ; <i32> [#uses=1] 11 %tmp7 = or i32 %tmp6, %tmp3not ; <i32> [#uses=1] 12 %tmp7not = xor i32 %tmp7, -1 ; <i32> [#uses=1] 13 ret i32 %tmp7not 14 15 ; CHECK-LABEL: @test1( 16 ; CHECK-NEXT: [[TMP7NOT:%.*]] = xor i32 %b, %a 17 ; CHECK-NEXT: ret i32 [[TMP7NOT]] 18 } 19 20 define i32 @test2(i32 %a, i32 %b) { 21 %tmp3 = or i32 %b, %a ; <i32> [#uses=1] 22 %tmp6 = and i32 %b, %a ; <i32> [#uses=1] 23 %tmp6not = xor i32 %tmp6, -1 ; <i32> [#uses=1] 24 %tmp7 = and i32 %tmp3, %tmp6not ; <i32> [#uses=1] 25 ret i32 %tmp7 26 27 ; CHECK-LABEL: @test2( 28 ; CHECK-NEXT: [[TMP7:%.*]] = xor i32 %b, %a 29 ; CHECK-NEXT: ret i32 [[TMP7]] 30 } 31 32 define <4 x i32> @test3(<4 x i32> %a, <4 x i32> %b) { 33 %tmp3 = or <4 x i32> %a, %b ; <<4 x i32>> [#uses=1] 34 %tmp3not = xor <4 x i32> %tmp3, < i32 -1, i32 -1, i32 -1, i32 -1 > ; <<4 x i32>> [#uses=1] 35 %tmp6 = and <4 x i32> %a, %b ; <<4 x i32>> [#uses=1] 36 %tmp7 = or <4 x i32> %tmp6, %tmp3not ; <<4 x i32>> [#uses=1] 37 %tmp7not = xor <4 x i32> %tmp7, < i32 -1, i32 -1, i32 -1, i32 -1 > ; <<4 x i32>> [#uses=1] 38 ret <4 x i32> %tmp7not 39 40 ; CHECK-LABEL: @test3( 41 ; CHECK-NEXT: [[TMP7NOT:%.*]] = xor <4 x i32> %a, %b 42 ; CHECK-NEXT: ret <4 x i32> [[TMP7NOT]] 43 } 44 45 define <4 x i32> @test4(<4 x i32> %a, <4 x i32> %b) { 46 %tmp3 = or <4 x i32> %a, %b ; <<4 x i32>> [#uses=1] 47 %tmp6 = and <4 x i32> %a, %b ; <<4 x i32>> [#uses=1] 48 %tmp6not = xor <4 x i32> %tmp6, < i32 -1, i32 -1, i32 -1, i32 -1 > ; <<4 x i32>> [#uses=1] 49 %tmp7 = and <4 x i32> %tmp3, %tmp6not ; <<4 x i32>> [#uses=1] 50 ret <4 x i32> %tmp7 51 52 ; CHECK-LABEL: @test4( 53 ; CHECK-NEXT: [[TMP7:%.*]] = xor <4 x i32> %a, %b 54 ; CHECK-NEXT: ret <4 x i32> [[TMP7]] 55 } 56 57
